History surrounds you at Castello di Giulio II. From how it was built to what it was used for, this impressive building has some secrets lurking within its walls.
Located in Ostia Antica, this fortified complex is free to enter. It's the perfect place to go for a cheap and fun day out! If you're eager for some more exploring, Parco Leonardo, Ostia Antica and da Vinci Market Central are not too far away.